Shovel.



c. M. BOWMAN.'

SHOVEL.

APPLIGATIQN FILED DBO. z, 1912.

Giro/cumin CHARLES M. BOWIVIAN, 0F LEBANON, PENNSYLVANIA.

SEOVEIJ.

Specification of Letters Patent.

lateiited Uot. 14, 1913.

Application filed December 2, 1912. Serial No. 734,610.

T0 all whom 'it may concern Be it known that I, CHARLES M. `BowMAN, a citizen of the United States, residing at Lebanon, in the county of Lebanon and State of Pennsylvania, have invented cer- 4tain new and useful Improvements in 'liquid or other material which may be discharged onto the blade of the shovel and thrown therefrom with the fuel or other contents of the blade.

Another object is to provide a shovel of this character having an improved means for controlling the discharge of the contents of the tubular handle or reservoir.

With these and other objects in view, the invention consists -of certain novel features of construction, and the combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings: Figure 1 is a perspective view of my improved shovel; Fig. 2 is a central longitudinal sec tion thereof; Fig. 3 is an enlarged detai sectional view of the socket which connect the blade to the handle showing the construction and arrangement of the liquid discharging mechanism therein.

Referring more particularly to the drawing 1 denotes the blade of my improved shovel, said blade being here shown as preferably scoop shaped and provided with a channel shaped attaching shank 2. The shank 2 is secured at its outer end by suitable fastening devices to the projecting end of the handle attaching socket or coupling 3 in which is secured the inner end of a tubular. handle 4 which forms a reservoir for the shovel and on the outer end of which is secured a cap 5 having thereon a hand hold 6.

In the socket or coupling 3 is a pump chamber 7 which opens through the upper side of the socket and is closed by a screw cap 8. In the cap 8 is slidably mounted the piston rod 9 of a pump piston 10 which is operatively engaged with the chamber 7 and is forced outwardly therein by a coiled spring 1l arranged between the piston and the inner end of the chamber as shown. On

the outer end of the piston rod 9 is a head y 12 by means of. which the piston may be projected or forced downwardly into the chamber 7 In the lower portion of the socket or coupling3 below the pump chamber 7 is-an inlet Valve chamber 13 which communicates with the lower end of the pump chamber by a fluid inlet port 14. The inner end of the chamber 13 communicates with the tubular handle or reservoir 4 through a fluid discharge port 15 at the inner end of which is arranged a valve seat 16. lVith the seat 16 is engaged a check valve 17 which is here shown as preferably in the form of a ball and which is yieldingly held in engagement with the seat 16 by a coiled spring 18 arranged in the chamber 13 and having its opposite end engaged with a plug 19 having a threaded engagement with the outerend of the chamber 13 as shown.

In the outer end of the socket or coupling 3 above the chamber 13 is formed a discharge valve chamber 20 the inner end of which communicates with the pump chamber 7 through a discharge port 21 at the outer end of which is formed a valve seat 22. Adapted to he engaged with the valve seat 22 is a check valve 23 which is also inv the form of a ball and is yieldngly held in engagement with its seat by a coiled spring 24 the outer end of which is engaged with the end of a Huid conducting tube 25 which is disposed in the shank 2 ofthe shovel blade and has its inner end in Huid tight engagement with the outer end of the chamber 20. vThe fluid discharging tube 25 is curved downwardly and extends forwardly through an aperture 26 in the rear end of the shovel blade and has its outer end in close engagement with the bottom of the blade as shown. The discharge end of t-he tube 25 terminates at a point substantially midway between the inner*r and outer ends of the blade and 1n said tind of the tube are formed series of Huid discharging apertures 27.

In the cap 5 on the outer end of the tubular handle or reservoir 4 is formed filling opening 28 through which oil or other fluid is introduced into the reservoir, said opening being normally closed by a screw plug 29 in the inner end of which is formed a valve chamber 30. The chamber 30 connects at its outer end with an air vent 31 formed in the outer end of the cap and which is normally closed by a check valve 32 in the form of a ball and which is held lin engagement with its seat by a coiled spring 33 arranged in the chamber 30 as shown.

In the operation of the shovel when it is desired to discharge the contents of the reservoir or handle 4 onto the contents of the blade it is simply necessary for the. shoveler to depress the piston rod 9 and `thus project the pump* piston into the pump chamber 7 thereby forcing the oil o r other contents of the pump out through the discharge port 21 and into the tube 25 which conducts the fluid to the shovel blade and discharges the same through the apertures 27 therein onto the fuel or other contents of the shovel blade. In thus forcing the fluid from the pump chamber the checkvalve 23 is automatically opened by the pressure of' the fluid. the spring or force the same upwardly in the pump When the piston rod is released chamber thereby drawing a fresh supply' of oil or other fluid through the ports 15.

and 14 -from the reservoir t. In this operation the check valve 17 will be opened 4by the suction of the piston and will be autol matically closed by its spring 18 as soon as the piston has reached the limitof its reF tracting stroke. lVhen a charge -of fuel is drawn from the reservoir 4 by the piston in the manner described the check valve 82 in the screw plug 29 will be automatically opened thus permitting air to enter the reservoir whichnvill facilitate the operation of the pumping mechanism and the discharge of the fluid from the reservoir. B constructing the pumping mechanism as herein shown and described it will be seen that any desired quantity of oil may be pumped from the reservoir and discharged into the blade of the shovel by repeatedly depressing and releasing the piston of the pump. l

My improved shovel is designed particun larly for shoveling coal r. other fuel and the tubular handle or reservoir is intended to contain oil, a suitable "quantity of which is pumped therefrom and discliarged onto the bottom of the blade. beneath the fuel which has been previously lifted or shoveled up on the blade, so that when the fuel thrown from the blade onto the lire the oil will be carried olf the shovel blade with the fuel and will stimulate the combustion of the latter and cause the same to quickly produce an increased heat. Qlhe shovel will be found especially usefiiling..l connection with the firing of locomotive' boilers `where it is frequently desirable to increase t-he steam pressure temporarily as when going up a steep grade under a heavy load. By discharging the oil onto the shovel blade 11 .will again retract the piston y the hand the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the forni., proportion and the minor details of construction may be resorted to without departing-from the principle or sacrificing any of the advantages of the invention as claimed.

Having thus described my invention, what I claim is:

1 'A shovel of the character described i comprising a blade, a tubular handle forming a reservoir, a coupling toconnect said blade and reservoir and arranged adjacent to said blade and inner end of said reservoir, pumping mechanism within said coupling pling may be actuated by the hand gripping the lower end of the handle to eject lthe contents ofthe reservoir into said blade.

2. A shovel of the character ,described comprising a blade having a shank, a hollow handle adapted to form a. reservoir, a socket to connect s aid blade with said hollow handle, a fluid conducting and discharge pipe to connect said socket with the blade of the shovel, a pumping mechanism arranged in said -socket and adapt-ed to be operated by gripping the innerend of the shovel handle whereby the contents of the hollow handle is pumped therefrom and forced through said fluid conducting pipe into theblade of the shovel.

3. A shovel of the character described comprising a blade, a tubular handle adapted to form a reservoir, a socket to connect the inner end said blade, a cap arranged on the outer end of said handle and having therein a lilling opening, a vented plug to close said opening. said plug having a check valve to normally close the vent therein, a fluid conducting pipe to connect said socket with the blade of the shovel and a pumping mechanism arranged in said socket and adapted to pump the contents from said tubular handle through said fluid conducting pipe into the blade of the shovel.

4. A shovel of the character described comprising a blade, a tubular handle adapt ed td form a reservoir, a socket to connect said handle with said blade, said socket ha vingtherein a discharge valve chambers, check valves ua;-

ranged in said .valve chambers, a fluid and means on the exterior of the couwhereby said pumping mechanismpump chamber and inlet and- 'of said tubular handle with ducting pipe to connectsaid diseharge 'chamber of ihe socket with the shovel blade,

l soeiie to connect said handle with the shank oi? the shovel blade, seid sockel; having herein s pump chamber and inletI and discharge vaive chambers, said. chambers Ycoinmumczi'aing respectively with the hollow hsndie and with said pump chamberge plug arrange in he ruiter end of seid inletl valve eheinber, spring'projected cheek valves srrenged in seid chambers whereby they ere normally closed, e fluid conducting pipe conneee'd si; one end with said discharge valve ehemiser und extending forwardly through hhe shnnii and' inner end of the shovel blade und into engagement with the inner portion of the bottomI of Jche shovel, said Huid @.011- ducting pipe having in its outer end discharge apertures, a pump piston slidably mounted in said pump chamber, s spring to retract or force said piston outwardly in said chamber, a piston rod connected with said piston, and a head on the outer end of said piston rod adapted to be engaged by the hund which grips the inner end of the handle whereby `said pump piston is projected inwardly sgainst the pressure of said spring and is thereby' operated to pump the ,content-s of seid tubular handle therefrom und to force said contents through the fluid conducting pipe und into the blade of the shovel..`

In testimony whereof I have hereunto set my hund in presence of two subscribing Witnesses.

CHARLES M. BOWMAN.

Witnesses Trios. J. SHAAK, Geo. Sensore. 

